Stamping-machine



H. W. WINTER.

STAMPING MACHINE. APPLICATION FILED MAR. 23. 19W.

Patented-June M, 1921 3 SHEETS-SHEET I.

H. W. WINTER.

- STAMPING MACHINE. APPLICATION FILED 111111.23. 1911.

3 SHEETS-SHEET 2.

' .H. W. WINTER.

-STAMPING MACHINE. APPLICATION EILEID MAI}. 23. m1.

3 SHEETS-SHEET 3.

llllll l l A WVZA/TU/i Patented June 14,1921.

' UNITED STES my in wmzrnn, or menu, massacnusnrms, assrenon, BY MESNE nssren.

mums, 'ro um'rnn SHOE macnmnnv CORPORATION, or PATERSON, NEW J'ER- SEY, A CORPORATION OF NEW JERSEY.

STAMPING-MACHINE.

Specification of Letters Patent. Pate t d J 14 1 2 Application filed HarchfiB, 1917. Serial No. 157,087.

To all whom it may concern Be it known that I, HENRY W. WINTER, a citizen of the United States, residm at Methuen, in the county of Essex and tate of Massachusetts, have invented certain Improvements in Stampi -Mach1nes, of which the following descrlption, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts 1n the several figures.

This invention relates to machines for marking, stamping or embossing sheet -material, such for example, as parts of boots and shoes.

Metallic stamping medium such as gold leaf, is supplied for stamping purposes 1n the form of a long strip with a paper backing wound into a-coil. An object of the present invention is to provide improved mechanism for automatically supplymg such stamping medium in strip form so that the stamping machine may be operated wlthout requiring the operator to do more than present the work in stamping pos tion.

Features of the invention consist in improved guiding means whereby the strip may be conducted to and away from a movable die, and improved feedlng means which may be so regulated as to supply in accurate measure the amount of stampingmedium required by the die in use.

As herein shown a heated die is employed and means are provided for guiding the stamping strip into sufficiently close proximity to the d1e to insure its proper location at the moment when the die is pressed upon the work, while at the same time maintaining the strip between the stamping opera-. tions sufficiently remote from the die to prevent overheating of the strip.

These and other features of the invention will be best understood and appreciated from the following description of a preferred embodimentthereof selected for purposes of illustration and shown in the accompanying drawings, in which- Figure 1 is a view in perspective of the entire machine;

Fig. 2 is a view in side elevation, partly in section;

Fig. 3 is a sectional view of the supply reel- Fig. 4 is a sectional view of the strip guiding devices adjacent to the supply reel, and lgS. 5 p and 6 are sectional views of the feedmg mechanism.

e lower portion of the machine frame is provided with a vertical bore to receive the shank of the work plate 4 which is adustably supported in the frame by a nut 6.

he upper branch of the frame is provided with vertical ways for a head 9 in which is yieldingly and adjustabl mounted the stem 8 of the die carrlage. he position of the die carriage with respect to the head 9 may be adjusted by a nut 26 threaded upon the upper end of the stem 8 while a compress1on sprmg interposed between a shoulder on the stem 8 and an adjustable bearing piece 27 affords relief in case of excessive pressure. The head 9 is reciprocated vertically by a lever 28 journaled upon a cross shaft 30 in the machine frame and operated through a vertical link 32 from a cam 35. The cam 35 is fast upon a cam shaft 38 and has a cam groove 36 in which runs a roller 34 on the link 32. The mechanism above described is similar to that disclosed in my prior application Serial No. 870,700, filed November 6, 1914, and forms no part of the present invention.

A removable die block 10 is mounted in ways formed in the die carriage. The die block is bored laterally to receive an electric heating unit 12 and provided on its lower face with an undercut recess to receive the die 14. One side of the recess is formed by a slidable plate 16 which is normally pressed into engagement with the undercut portion of the die by a spring 18 which is mounted on the die block and acts at its lower end against the rear side of the plate 16. The die block is provided with an opening extending from front to rear and through this opening extend a pair of sheet metal shields 20 and 22. The shields 20 and 22 are secured to the rear side of the die block 10 and extend forward through the opening and then downwardly over the front side of the die block. At their lower edges the shields 20 and 22 are brought together and secured to an intermediate sheet of asbestos 24. The shields are of light spring metal and are spaced from the die block so as to be kept cool by the interposed air spaces. The lower ed e of the asbestos sheet extends downwardly elow the face of the die 14 ltl Eitl

end when the die-is depeessed the edge of the asbestos sheet encounters the work in advance ot the die and is torced upwardly e einst the ectioe out the spring shields. hes the is from the woelr the edge of esbestoe sheet sets es s, steppe? to sepsiote the etc sing strip from the toes is The theme Q; is pirovided with o pair of sets to receive e ctoss ""cd 81 upon which the reel 80 of Gtllp ?0 may be loosely mounted. As shown is 3, s set screw the rod end so peoveot oxiel movement oi the T 85 beers ogeiost one 8G end compiession spcieg at boo ing against the op oetes sufiicieiit friction of the tool.

side ot the reel 80 .i cod oi 84: "op-oh the so site cod cl reel c? to i "event loos edit-cent to L -a the front pecvided of ti'siisverseguide rods 87, 88 between. which the stomping strip is led n,- G

We wey to the die, The rods 8'31, 88 ied. by s "coil? erms 91 edjustsbly i right leit screw 89 which by frictional engagement poetics oi the machine oct es edge geges d they be moved to ice in accordance with being used by screw 89 in the zip-- The tods 8'? and 88 else with the lower edge of the bestos sheet g ding the stomping str p @W'OSS low-es toes of the die.

it c t joiisoeled upon cross shettbt is pm"; the soppl reel 86. The teed roller is secured to sbett by set screw shown in tl sod to the left end of the shett is lteyed the inner member 64 of o oeewey clutch. This mcmbee 64- is received in the inner loco of e heed t3 loosely mounted upon the outer end of e shaft and bovine o projecting em b0. 'liheerm 60 is slotted to receive on adjustable block 59, the positics of which may be radially adjusted by e screw 62 carried by the arm 60. A feed link 56 is connected to the block 59 at its upper end end at its lower end is connected to a, lever 46 pivoted upon a cross-shaft 48 (see Fig. 2) The lever 46 is loosely mount" ed on the shaft 48 and its rear end 52 is provided with e lockin stud 5tby which the em 52 may be detec hebly lockedto an arm 50 test on the shaft 48 and projecting rescwerdly therefrom. The lever 46 carries a tec ies the tees 0t and above- 42 iii the inner fees of e com t0 on the shaft 38. When the end of the lever 52 is locked to the one 50 the com o ecetes to oscillate the one 60 through the hole 56 end so tutu the teed roller 90, The extent of its oscilletioe end consequently the length of the feeding movement impacted to the strip is edj'usted by moving the block 59 scores to or farther from the exis of the arm 60. A cooperating teed roller 96 joomeled upon it shett 95 is provided edjecent to the feed roller 90. The roller 96 is positively driven by e geared connection with the roller 90. the ends of the shaft 95 see received is. slideble joumels which are nocmell forced towerd the roller 90 by springs es s own in Fig. 6, so that the stempin 'strip they GB.- gs e yieldingly with sunil'orm pressure.

2 pair of side gages 93 see dis osed edjecoot to the upper surface oi? the cod roller 90, being cerried upon e tight end left screw 92 set in the portion 9t of the machine fierce. These ggeges mey be adjusted to= weed or from each-other in accordance with the width of the strip end together with the feed roller 90 serve to direct the stomping strip to the upper shield 20 of the die block.

The mecbioe is eiede seedy for operation by izoseeting t e coil oi stomping medium upon the supply reel and leading the end of; the stomping between the guide rods 87 end 88 then over the shieldQO to the feed trolls 90*, 9% from which the end oi? the strip passes downwardly into the column of the mechioo 'lhe length oi? the feedspecs is thee. adjusted by turning the crew 62 so thet the stPip will be advanced after each operation. just suiiiciently to bring fresh beheeth the fees of the d329, 142a lie opeceting the machine the "work is psesested position upon the plots 4 end the machine The stamping heed is its medietely lowezed and the die 14.- pressed. egeirist the wort: and upon the strip of stomping material. in this operation, es elceedy explained, the shields '20 end 22 yield; slightly then reessume their normel position causing" the asbestos sheet 24 to strip the die. As the stamping heed moves upwecdly the arm 60 is oscilleted advancing the stomping strip in readiness toe the ensuin operation eving thus described my invention, 1 claim as new and desire to secure by Letters Patent of the United States:

1. A stomping machine having, in c0mbinetion, a, movable die having strip guiding means, a supply reel and a feed rollet" rotatable about fixed axes located at one side of the path of the die, whereby a. strip of stomping medium may be looped about the die between the reel end'fced roll strip from the reel to the feed roll about the die and out of contact therewith.

3. A stamping machine, having, in combination, a reciprocatory die carrier having a stamping die and a recess formed about the die, and means for guiding a strip of stamping medium through the recess and across the face of the die.

4. A stamping machine having, in combination, a reciprocatory ie carrier having a stamping die and an o ening disposed substantially parallel to t e 'face of the die, strip guiding means, and means for feeding a strip of stamping medium through the opening and past the face of the die.

5. A stamping machine having, in combination, a reciprocatory die carrier havin a stamping die, and means movable wit the carrier for guiding a strip of stamping medium in a loop about the die and normally out of contact with the die.

6. A stamping machine, having, in combination a reciprocatory die carrier having a spaced end portion, means for heating said end portion, and means 'for guiding a strip of stampingmedium in a loop about said end portion.

7. A stamping machine having, in combination, a reciprocatory die carrier havin a spaced end portion, means for heating said on portion, and guiding means extending into the space for guiding a strip of stam ing medium about said end portion whi e f name to this specification.

the strip out of contact there- 8. A stamping machine having, in com-'.

bination, a reciprocatory ie camer having a heated end portion and a shield fixed to the carrier for engagement with the stamping medium disposed opposite to two surfaces of said end portion and separated therefrom to 'furnish an air space between tge sdtamping medium and heated portion of t e ie;- I

9. A stamping machine, having, in combination, a heated die carrier, and a shield comprising two sheet metal members spaced from the carrier and from each other. .7

10. A stamping machine, having, in combination, a-heated die carrier, a die, a sup port fixedly secured to a wall of: the carrier, and an asbestos stripper mounted upon the support and constructed and arra: i to engage the work through a strip of stamping medium during the stamping operation.

11. A stampin machine, having, in combination, a mova le stamping die, a supply reel for stampin medium in str1 ide rods for t e strip of stamping mei um, and adjustable edge gages camedby said rods.

12. A stamping machine, having, in combination, a stamping die, a driven take-up roller for drawing a stri of stam ing medium over the die, and-ad; ustable go gages cooperating with the strip opposite ,and in form,

close proxlmity to the surface of the roller,

the strip passing immediately between the edge gages and the roller.

In testimony whereof I have signed my HENRY w. WINTER 

